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Code Issues Releases Activity

* align the source initialy address

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Originally committed as revision 567 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Zdenek Kabelac
2002-05-23 12:17:08 +00:00
parent 2bd978bdb8
commit 6efad6fd85
1 changed files with 6 additions and 4 deletions
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10
libavcodec/i386/dsputil_mmx.c
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@ -1107,18 +1107,20 @@ int main(int argc, char* argv[])
volatile int v; volatile int v;
int i; int i;
const int linesize = 720; const int linesize = 720;
char bu[32768]; char empty[32768];
uint64_t te, ts = rdtsc(); uint64_t te, ts = rdtsc();
char* im = bu; char* im, *bu = empty;
op_pixels_func fc = put_pixels_y2_mmx2; op_pixels_func fc = put_pixels_y2_mmx2;
bu += 32;
bu =(char*)(((long)bu) & ~0xf); // 16 bytes alignment
im = bu;
for(i=0; i<1000000; i++){ for(i=0; i<1000000; i++){
fc(im, im + 1000, linesize, 16); fc(im, im + 1000, linesize, 16);
im += 16; // im += 4; //
if (im > bu + 10000) if (im > bu + 10000)
im = bu; im = bu;
} }
te = rdtsc(); te = rdtsc();
printf("CPU Ticks: %7d\n", (int)(te - ts)); printf("CPU Ticks: %7d\n", (int)(te - ts));
fflush(stdout);
} }
#endif #endif